The first is that life annuities and US bonds, including US savings bonds, are all relatively safe vehicles for retirement income. However, life annuities and bonds are not direct substitutes, but rather complements, because they have different strengths and weaknesses. Given that simple truth, the best strategy for most people in retirement is to have both types of safe retirement income. It isn't a case of either/or, but rather a case of how much of safe retirement income should come from life annuities and how much should come from US bonds such as savings bonds. In this sense it is different strokes for different folks, but few folks should have all their safe retirement income beyond SS tied up in just government bonds or life annuities. Instead they should have some of each. For individuals most worried about safe income for life, if either they or their spouse should live a particularly long life, more weight should be given to life annuities. For those more concerned about flexibility in the income stream, either while they are alive or after their death, and also relatively less concerned about the height of the safe income stream while alive, more weight should be given to safe income from government bonds.
The second point is that for retiree income to be truly safe, most of the 'safe' retirement income needs to be inflation protected. While you are working your wages will mainly keep up with inflation. But once you are retired and over 80, wage income is not an option. The elderly with only nominal income are taking on a lot of inflation risk. This risk could show up late in their lives when they are most vulnerable. Trying to forecast future inflation rates many years into the future is a fool's errand, and I know because I spent a good part of my working life developing and assessing long-term economic forecasts. One thing you learn in doing that is that it is impossible to make accurate forecasts of inflation several years from now. There are simply too many things that affect inflation to make prediction of LT inflation rates anything more than a bad guess. So better to have the inflation protection built in, than guess what the inflation rate may be and figuring your nominal assets will protect you from inflation, given that your inflation guess is reasonably accurate. Your inflation guess will not necessarily be reasonably accurate.
BobK


